TS393ID - Dual Micropower CMOS Comparator | STMicroelectronics
N.º da peça: TS393ID ✓ AtivoTS393ID Visão geral
A voltage comparator is an analog integrated circuit that compares two input voltages and changes its output state according to their relationship. The TS393ID belongs to the comparator hierarchy within analog and mixed-signal semiconductors. Its CMOS implementation emphasizes low supply current, and its open-drain outputs allow multiple devices to share a common pull-up when wired-AND behavior is required. These characteristics place it between simple threshold logic and more complex analog front ends.
The primary features include two independent CMOS comparators, a 2.7 V to 16 V supply range, and 9 µA typical current consumption per comparator. Each output is open drain and requires an external pull-up resistor when a logic-high output is required. The SOIC-8 package provides a conventional surface-mount footprint suitable for compact industrial, consumer, instrumentation, and embedded-control designs. The manufacturer also identifies the TS3702 as a related dual micropower comparator offering similar performance with push-pull CMOS outputs.
Electrically, the open-drain stage can pull its output low but cannot actively drive a high level. This gives designers control over rise time through the pull-up resistor and allows several comparator outputs to share a bus. That flexibility is useful in battery-powered equipment where minimizing activity is important, although the external pull-up contributes its own continuous current after an output is released. The two channels can compare different signal pairs or operate together for window supervision.
Typical applications include battery-powered threshold detection, sensor signal conditioning, overvoltage and undervoltage indication, temperature-alarm circuits, industrial control interfaces, and low-power monitoring modules. The comparator may be used with op-amp-like input networks, dividers, current sensors, or digital control inputs where the required decision is binary. Because output polarity and timing determine system behavior, both input and output details should be checked against the manufacturer datasheet before final circuit release.
A key design consideration is the external pull-up on each open-drain output. Select its resistance to balance noise immunity, switching speed, and power consumption, then confirm that every connected output can safely share the same node. Account for input common-mode limits, supply decoupling, output rise time, and any required hysteresis. The two channels are independent, so grounding or signal-conditioning requirements should be evaluated separately for each comparator.
This page combines the TS393ID's verified electrical and packaging characteristics with drop-in candidate evaluation, parameter-by-parameter comparison, sourcing guidance, and practical circuit-design notes. It is intended to accelerate component selection while preserving the need to confirm detailed operating limits and timing behavior against the manufacturer datasheet.
Alternativas drop-in para TS393ID — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
TS393CD
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →LM293DGKRG4
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS393ID Classificações máximas e características elétricas
| Comparator Count | 2 |
| Supply Voltage Range | 2.7 V to 16 V |
| Supply Current per Comparator | 9 µA typical |
| Comparator Technology | CMOS |
| Tipo de saída | Open drain |
| Device Type | General-purpose voltage comparator |
| Encapsulamento | 8-pin SOIC |
| Tipo de montagem | Surface mount |
| Número de pinos | 8 pins |
| Low-Power Characteristic | Approximately 20 times lower typical supply consumption per comparator than bipolar LM393 |
| Output Pull-Up Requirement | External pull-up required for open-drain outputs |
| Related Push-Pull Comparator | TS3702 |
Guia de Configuração de Pinos do TS393ID 8-pin soic
Configuração de pinos para TS393ID (pacote 8-pin soic). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para TS393ID.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TS393ID é adequado para 6 aplicaçãos: Battery-Powered Threshold Detection, Sensor Signal Conditioning, Overvoltage and Undervoltage Supervision, Industrial Control and Process Monitoring, Temperature and Level Alarm Circuits, Low-Power Logic Interlocking.
Battery-Powered Threshold Detection
The TS393ID fits battery-powered threshold detection because each comparator typically consumes only 9 µA while operating across a 2.7 V to 16 V supply range. Place one channel across a divided sensor or supply signal and use the other for an independent limit when additional monitoring is needed. Because both outputs are open drain, fit the required pull-up resistors close to the device and select their resistance to minimize standby current while maintaining a clean logic-high transition. The STMicroelectronics datasheet identifies current consumption as approximately 20 times lower than the bipolar LM393, making the TS393ID attractive for portable sensing equipment where continuous comparator draw matters.
Recomendado
Sensor Signal Conditioning
The TS393ID can convert an analog sensor condition into a digital decision for an embedded controller or monitoring system. Use each independent comparator channel with its own divider, reference, or sensor interface, and add positive feedback when hysteresis is required to prevent repeated switching around the threshold. Its 9 µA typical current per comparator and 2.7 V minimum supply support low-energy signal conditioning, while the 8-pin SOIC package simplifies board assembly. The open-drain output requires an external pull-up, so verify that the resulting rise time satisfies the receiving circuit and that the sensor signal remains inside the device's input common-mode limits.
Recomendado
Overvoltage and Undervoltage Supervision
The TS393ID supports compact overvoltage and undervoltage supervision by using its two independent comparator channels to compare divided supply rails with a reference. The 2.7 V to 16 V operating range makes it applicable to multiple low- and moderate-voltage systems, while 9 µA typical current per comparator reduces the burden of always-on protection circuitry. Use resistor-divider ratios that keep both sensed nodes within the comparator's permitted common-mode range. Because the outputs are open drain, a shared pull-up can provide a common fault indication if the design deliberately supports wired-AND behavior; otherwise, use separate pull-ups for independent warning and fault signals.
Recomendado
Industrial Control and Process Monitoring
The TS393ID is appropriate for industrial process-monitoring modules that must compare a control signal or scaled process value with a fixed threshold. Its dual-channel architecture allows one circuit to perform both limit checks without requiring two separate packages, and its 9 µA typical current per comparator helps isolate monitoring functions that remain active continuously. The 8-pin SOIC format supports conventional surface-mount assembly, but layout still requires a stable supply plane, close input routing, and careful pull-up placement. Confirm operating-temperature limits, input common-mode behavior, and response timing in the STMicroelectronics datasheet before deploying the device in safety-critical or high-noise industrial equipment.
Recomendado
Temperature and Level Alarm Circuits
The TS393ID can implement a temperature alarm or tank-level limit detector when the measured quantity is converted into a voltage that crosses a reference threshold. Two channels may monitor separate alarm points, allowing a compact module to report both high and low conditions. Its 9 µA typical consumption per comparator is valuable in remote or battery-backed monitoring, and the 2.7 V minimum operating voltage supports low-voltage sensor systems. Add hysteresis to prevent chatter around the transition point, use a pull-up matched to the required rise time, and confirm that the transducer output remains within the comparator's input common-mode range under all expected temperature or level conditions.
Recomendado
Low-Power Logic Interlocking
The TS393ID can create compact logic interlocks where two conditions must be compared before another circuit is permitted to operate. Its two independent open-drain channels can represent separate permissive or inhibit signals, and multiple outputs may share a pull-up when wired-AND behavior is useful. The low typical consumption of 9 µA per comparator reduces the impact of continuous supervision, while the 16 V maximum supply supports systems above low-voltage logic levels. Keep the shared output node short and properly pulled up, account for the RC-defined rising edge, and validate every input's voltage range. The TS3702 is a related option when push-pull outputs are preferred over open-drain behavior.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TS393ID — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TS393CD | LM293DGKRG4 |
|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Comparator Count | 2 | 2 | 2 |
| Comparator Technology | CMOS | CMOS | Bipolar |
| Output Type | Open drain | Open drain | Open collector |
| Relative Consumption | Approximately 20 times lower than the bipolar LM393 | Approximately 20 times lower than the bipolar LM393 | Reference dual bipolar comparator |
| External Pull-Up Requirement | Required for open-drain outputs | Required for open-drain outputs | Required for open-collector outputs |
| Pin Count | 8 pins | 8 pins | 8 pins |
Principais diferenciais
- Lower typical channel current than a bipolar LM393 reference (vs LM293DGKRG4)
- Same-family replacement path in an 8-pin SOIC package (vs TS393CD)
- Shared open-drain bus capability (vs TS3702)
Notas de projeto
Do not treat an open-drain output as a complete logic output. Each channel requires an external pull-up unless it is intentionally connected to a shared wired-AND node. Calculate the pull-up current from the lowest output voltage and verify the logic-high level at the receiver. The resistor also sets the output rise time together with bus capacitance, so overly large values can cause timing failures even when static logic levels appear correct.
The TS393ID's 9 µA typical current per comparator is low, but system standby consumption can still be dominated by external networks. Use high-value resistor dividers where their resistance and leakage remain acceptable, avoid excessive pull-up current, and disconnect unused channels according to the datasheet guidance. Evaluated current should include both comparator channels, pull-up loading, input-bias effects, and any always-active external reference circuit.
Place the supply bypass capacitor close to the device's supply and ground pins, and keep input-divider and feedback traces short to reduce noise pickup and switching transients. Route comparator inputs away from fast digital or switching-node traces. If outputs share a pull-up, keep that node compact to minimize capacitive loading and preserve the intended rise time, especially when one channel changes state while another remains active.
Use positive feedback to create hysteresis when the compared signal can cross the threshold slowly or exhibit noise. Confirm the resulting upper and lower switching thresholds against the application requirements. Also verify the input common-mode range across temperature and supply variation; a correct reference voltage does not guarantee correct operation if either input node approaches or exceeds the allowed input range.
Informações de conformidade
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements are present in the cited product information. Confirm material-compliance documentation with STMicroelectronics for the exact ordering code.
